<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.2/semantic.min.css"></link>
<style>
  body {
    background-color: rgba(0, 0, 0, 0.05);
    background-image: repeating-linear-gradient(0deg, transparent, transparent 7px, rgba(0, 0, 0, 0.2) 1px, transparent 8px), repeating-linear-gradient(90deg, transparent, transparent 7px, rgba(0, 0, 0, 0.2) 1px, transparent 8px);
    background-size: 8px 8px;
    padding: 17px 16px;
  }
</style>